Yooal wave tremolo for reed organs



I'. T. SHEARER.

VOGEL WAVE TEEMoLo EOE EEED oEGANs.

Patented Oct. 29, 1889.

'mil' annum UNITED STATES FRANK THOMAS SHEARER, OF

PATENT OFFICE.

CLINTON, ONTARIO, CANADA.

VOCAL-WAVE TREMOLO FOR REED-ORGANS.

SPECIFICATION forming part of Letters Patent No. 414,086, dated October 29, 1889.

Application filed July 17, 1889. Serial No. 317,775. (No model.)

To LZZ whom it 17T/ay concern:

Be it known that I, FRANK THOMAS SHEAR- ER, a citizen of Ontario, Canada, residing at Clinton, in the county of Huron and Province of Ontario, have invented certain new and useful Improvements in Vocal-fave Tremolos for Reed-Organs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvcmentsin tremolos for reed-organs, which will be hereinafter more particularly described, and pointed out in the claim.

In the accompanying drawing, forming part of this speciication, the ligure is a perspective view of a reed-board of an Organ with the various parts representedthereon.

A is the reed-board; B, the fan; B', the oase covering the fan; O, the vocal-wave tremolo; D, a connecting-rod attached at one end to the crank E of the axle e of the fan B.

F F are cloth hinges by which the tremolo is fastened to the reed-board A. The fan B is of the same construction as in general use. The crankE is attached to the end of the axle of the fan on the outside of the oase B. The

connecting-rod D is attached to the crank E at one end, and the other end is connected to the tremolo C, near the upper edge c, at one end thereof. The trexnolo C is attached to the reed-board A by cloth hinges back of the swells, so as not to interferetherewith, and can be made in size to correspond with the organ, and has a vibratory motion on the hinges.

One great advantage of this improvement is that the Velocity of the tremolo is controlled by the degree to which the bellows of the organ is inflated, and, as the reed-organ can be greatly governed as to power by more or less pumpnig, the vocal wave will adjust its own speed to compare with the high Or low pressure, so that a strain of music can be worked up from tranquillo to agitato to perfection, without any unusual effort on t-he part of the performer.

I claim- In reed-organs, the vocal-wave tremolo attached to the reed-board by flexible hinges and to the crank of' the fan by a connectingrod, all substantially as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK THOMAS SHEARER.a

W'itnesses:

JOHN RANsEORD, CHARLES A. HAETT. 

